Microporous fibers with improved properties
First Claim
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1. A porous fiber which includes a fiber material having a plurality of elongate pores therein, and wherein said pores are formed in the fiber material which has been expanded and stretched away from filler material which is included in said fiber material, said fiber having:
- a denier of about 50 or less;
a percent elongation at break of about 30% or morea tensile strength at break of about 200 MPa or more; and
having said pores distributed over an outer surface of said fiber with an average distributional density of about 0.01 pores, or more, per μ
m2 of said outer surface.
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Abstract
A porous fiber includes a distinctive configuration of voids therein to achieve advantageous levels of wettability, liquid penetration and mechanical properties. The fiber has a denier of not more than about 50, and a percent elongation at break of not less than about 30%. The fiber can also have a tensile strength at break of not less than about 200 MPa.
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Citations
17 Claims
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1. A porous fiber which includes a fiber material having a plurality of elongate pores therein, and wherein said pores are formed in the fiber material which has been expanded and stretched away from filler material which is included in said fiber material, said fiber having:
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a denier of about 50 or less; a percent elongation at break of about 30% or more a tensile strength at break of about 200 MPa or more; and having said pores distributed over an outer surface of said fiber with an average distributional density of about 0.01 pores, or more, per μ
m2 of said outer surface. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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Specification